List of top Questions asked in AP EAPCET

The sum of number of antibonding electrons present in O$_2$, O$_2^+$, O$_2^-$ is:
Observe the following molecules: ClF, SF$_4$, CH$_4$, NH$_3$, XeF$_4$, PCl$_5$. The number of molecules in which the central atom has expanded octet is:
A gaseous mixture at temperature T(K) consists of dihydrogen and dioxygen, with a total pressure of 2 2 bar. If the mixture is 33.33% dihydrogen and 66.67% dioxygen, what is the approximate partial pressure (in bar) of dihydrogen? (T(K), 2 bar total pressure)
One mole of an ideal gas is contained in a 1 L vessel at T(K) with a pressure of p atm. The vessel is split into two equal parts. What are the pressure and volume in each part?
Vessel (A) contains 1 mole each of H$_2$ and I$_2$, and vessel (B) contains 2 moles each of H$_2$ and I$_2$. Both vessels are at the same temperature and reach equilibrium for the reaction H$_2$(g) + I$_2$(g) $\rightleftharpoons$ 2HI(g). What is the ratio of the equilibrium constants $K_p$ for vessels A and B?
The conjugate acid and base of ammonia are X and Y, respectively. What are the shapes of X and Y?
For the reactions: NaBH$_4$ + I$_2$ $\rightarrow$ A + NaI + H$_2$, and A + LiH $\rightarrow$ B, what are A and B, respectively? (Reactions are not balanced)

Match the following:

List - I (Metal) List - II (Flame colour) 
A)LiI)Crimson red
B)NaII)Yellow
C)CaIII)Brick red
D)BaIV)Apple green

Match the following

List - A List - B 
A.HydrolasesI.Argino succinase
B.LyaseII.Fructose 1,6 bisphosphatase
C.LigaseIII.Hexokinase
D.TransferaseIV.Ribose-5-phosphoisomerase
  V.Glutamine synthetase
Which of the following metals is used for measuring high temperatures?
The buffer system that helps in maintaining pH of blood between 7.26 and 7.42 is

Match the following

List - A List - B 
A.Mottled leafI.Beets
B.Heart-RotII.Legumes
C.Mouse earIII.Pecan
D.BronzingIV.Cauliflower
  V.Citrus
The correct sequence of essential elements K, Mg, Mo, P, C of the given list, which show following activities.
A) ATP synthesis
B) Component of enzymes
C) Enzyme activation
D) Turgidity maintenance
Alkaline oxidative fusion of MnO$_2$ gives 'X'. The products formed when 'X' undergoes disproportionation in acid medium are
I) KMnO$_4$
II) MnO$_2$
III) O$_2$
IV) H$_2$O
A 10 $\mu$C charge is placed at the vertex A of an equilateral triangle ABC of side 2 m. The work done in taking another charge $(3 + \sqrt{3})$ $\mu$C from the mid point of BC to the mid point of the side AC is:
The height at which the weight of a person becomes 25% of his weight on the surface of the earth is: (R$_E$ is the radius of the earth)
The number of monochloro derivatives possible for 2,2-Dimethylbutane and 2,3-Dimethylbutane are respectively
What are X and Y respectively in the following set of reactions?
2-Bromobutane $\xrightarrow{{alc. KOH}}$ C$_4$H$_8$ (major)
C$_4$H$_8$ $\xrightarrow{{KMnO}_4/{H}^+}$ X
C$_4$H$_8$ $\xrightarrow{{Baeyer's reagent}}$ Y

What is the major product Y in the following reaction sequence?

What is the end product 'R' in the reaction sequence?

The incorrect statement about the product ‘Z’ in the given reaction sequence is

Which of the following represents Gattermann reaction?

Bond formed by DNA ligase
Choose the correct statement in the following
Assertion (A): Genetic maps are extensively used as a starting point in the Human genome sequencing project.
Reason (R): Frequency of recombination between gene pairs on the same chromosome as the measure of distance between genes and mapped their position is called gene mapping.